Airworthiness Directive · Amendment 39-19091 · Navigation
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model CL-600-2B16 (CL-604 Variant) airplanes, certificated in any category; serial numbers 5301 through 5665 inclusive; 5701 through 5988 inclusive; and 6050 through 6080 inclusive.
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B16 (CL-604 Variant) airplanes. This AD was prompted by reports of in-service incidents regarding the loss of all air data system information provided to the flightcrew. This AD requires revising the airplane flight manual (AFM) to provide "Unreliable Airspeed" procedures to the flightcrew to stabilize the airplane's airspeed and attitude for continued safe flight and landing. We are issuing this AD to address the unsafe condition on these products.
Within 30 days after the effective date of this AD: Revise the Emergency Procedures section of the AFM to include the information in Unreliable Airspeed, of Section 03-15, Instruments System, of Chapter 3, Emergency Procedures, of the applicable AFM specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD. These revisions incorporate a procedure for “Unreliable Airspeed.” Thereafter, operate the airplane according to the limitation and procedure in the applicable revision.
(1) For airplanes having serial numbers 5301 through 5665 inclusive: Bombardier Challenger 604 AFM, Publication No. CH 604 AFM, Revision 103, dated November 28, 2016.
(2) For airplanes having serial numbers 5701 through 5988 inclusive (marketing designation—Challenger 605): Bombardier Challenger 605 AFM, Publication No. CH 605 AFM, Revision 41, dated November 28, 2016.
(3) For airplanes having serial numbers 6050 through 6080 inclusive (marketing designation—Challenger 650): Bombardier Challenger 650 AFM, Publication No. CH 650 AFM, Revision 6, dated November 28, 2016.
